Greetings in that Divine and Most Precious Name of Our Lord and Savior Jesus Christ!
I used to be a fire-and-brimstone Baptist about these kinds of Christmas controversies, but as I got older and wiser I cooled off. I used to badger people about these kinds of things, but then I began to see how off-base I was. For example, my mother loves Santa Claus statues, dolls, figurines, etc etc. She has quite a collection which she puts out for Christmas decorations. I have always thought they were in poor taste, both because of the gaudy and crass commercialism of it an also the manipulative lying to children. However, lets get real, Santa Claus is a real Saint in the Church.
So when folks like my mother put up Santa Claus, they are inadvertently honoring the Saints, and we honestly can't find any harm with that can we? The Spirit will guide them as they get deeper, just as it guided me towards tolerance. Further, while I disagree with the whole Santa Claus for kids character who magically gives presents, we have an Orthodox alternative which is actually the origination of these myths in the first place! The Communion of Saints means that Saint Nicholas is a real person, who can really interact with the Church Militant being of the Church Triumphant. So while Protestant folks who teach the Santa myth to their children are also inadvertently discussing the Communion of the Saints because whether they acknowledge it or not, Saint Nicholas is real.
I've got my family to acknowledge Saint Nicholas icons alongside the more commercial versions, but the person depicted remains the same. So really, we can use these mainstream Christmas images as a teachable moment and talking point to discuss the actual Santa, and what the Saints actually do